#3947BA#3947BA

#3947BA is a mid, vivid blue. Relative luminance 0.089; OKLCH L 46.0% C 0.180 H 271.9°. Best body text is #FFFFFF at 7.54:1 contrast (WCAG AA passes).

Color values

HEX	#3947BA
RGB	rgb(57, 71, 186)
HSL	hsl(233, 53%, 48%)
HSV	hsv(233, 69%, 73%)
CMYK	cmyk(69.4%, 61.8%, 0%, 27.1%)
CIE-LAB	lab(35.83, 32.88, -62.31)
CIE-LCH	lch(35.83, 70.46, 297.82°)
OKLab	oklab(45.99% 0.006 -0.1798)
OKLCH	oklch(45.99% 0.18 271.9)
XYZ	xyz(12.8005, 8.9203, 47.4920)
Luminance	0.0892 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.51

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3947BA #BAAC39

analogous

#3988BA #3947BA #6B39BA

triadic

#3947BA #BA3947 #47BA39

tetradic

#3947BA #BA3988 #BAAC39 #39BA6B

square

#3947BA #BA3988 #BAAC39 #39BA6B

split-complementary

#3947BA #BA6B39 #88BA39

monochromatic

#1C235C #2B358B #3947BA #616DCF #9099DD

Accessibility & contrast

On white

7.54

#3947BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#3947BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3947BA

7.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3947BA	#FFFFFF	#000000	##FFFFFF
##3947BA	1.00	7.54	2.78	7.54
#FFFFFF	7.54	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ABE

Deuteranopia (green-blind)

#004EB8

Tritanopia (blue-blind)

#00647A

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3947ba;
/* rgb */ color: rgb(57, 71, 186);
/* oklch */ color: oklch(46.0% 0.180 271.9);

Tailwind

colors: {
  custom: {
    50: '#807ad0',
    500: '#3947ba',
    950: '#000000',
  },
}

SCSS

$custom: #3947ba;
$custom-light: #807ad0;
$custom-dark: #000000;

JSON

{
  "hex": "#3947ba",
  "rgb": {
    "r": 57,
    "g": 71,
    "b": 186
  },
  "hsl": {
    "h": 233.488,
    "s": 53.086,
    "l": 47.647
  },
  "oklch": {
    "l": 0.45986,
    "c": 0.17989,
    "h": 271.9
  },
  "luminance": 0.08922
}

Semantic roles & 50–950 ramp

primary

#3947BA

secondary

#C8C187

accent

#CD4BDC

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #3947BA

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →